Sidewinder 20° (20F / -7C) _wf_exc With a CloudTec® cushioning system

With a CloudTec® cushioning system for stable runs

stretchy softshell performance in a five-panel cap

and elbows

but your footwear shouldn't be

including an intuitive locking mechanism and dual-side opening that can be operated with one hand

Sidewinder 20° (20F / -7C) _wf_exc With a CloudTec® cushioning systemTraditional mummy bag optimized for side sleepers. Specifically designed for the over 60% of people who sleep on their sides, the second generation of our patented Sidewinder side sleeper technology ensures warmth, comfort, and ease of use in any position you settle into. Constructed for comfort, with additional body mapped insulation to optimize warmth where you need it and provide cushioning and support at the hips and shoulders, easing pressure